2
; jdmrgmmx.asm - merged upsampling/color conversion (MMX)
4
; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
7
; x86 SIMD extension for IJG JPEG library
8
; Copyright (C) 1999-2006, MIYASAKA Masaru.
9
; For conditions of distribution and use, see copyright notice in jsimdext.inc
11
; This file should be assembled with NASM (Netwide Assembler),
12
; can *not* be assembled with Microsoft's MASM or any compatible
13
; assembler (including Borland's Turbo Assembler).
14
; NASM is available from http://nasm.sourceforge.net/ or
15
; http://sourceforge.net/project/showfiles.php?group_id=6208
19
%include "jcolsamp.inc"
21
; --------------------------------------------------------------------------
23
; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
26
; jsimd_h2v1_merged_upsample_mmx (JDIMENSION output_width,
27
; JSAMPIMAGE input_buf,
28
; JDIMENSION in_row_group_ctr,
29
; JSAMPARRAY output_buf);
32
%define output_width(b) (b)+8 ; JDIMENSION output_width
33
%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
34
%define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
35
%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
37
%define original_ebp ebp+0
38
%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM]
40
%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
43
global EXTN(jsimd_h2v1_merged_upsample_mmx)
45
EXTN(jsimd_h2v1_merged_upsample_mmx):
47
mov eax,esp ; eax = original ebp
49
and esp, byte (-SIZEOF_MMWORD) ; align to 64 bits
51
mov ebp,esp ; ebp = aligned ebp
53
pushpic eax ; make a room for GOT address
55
; push ecx ; need not be preserved
56
; push edx ; need not be preserved
60
get_GOT ebx ; get GOT address
61
movpic POINTER [gotptr], ebx ; save GOT address
63
mov ecx, JDIMENSION [output_width(eax)] ; col
69
mov edi, JSAMPIMAGE [input_buf(eax)]
70
mov ecx, JDIMENSION [in_row_group_ctr(eax)]
71
mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
72
mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
73
mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
74
mov edi, JSAMPARRAY [output_buf(eax)]
75
mov esi, JSAMPROW [esi+ecx*SIZEOF_JSAMPROW] ; inptr0
76
mov ebx, JSAMPROW [ebx+ecx*SIZEOF_JSAMPROW] ; inptr1
77
mov edx, JSAMPROW [edx+ecx*SIZEOF_JSAMPROW] ; inptr2
78
mov edi, JSAMPROW [edi] ; outptr
84
movpic eax, POINTER [gotptr] ; load GOT address (eax)
86
movq mm6, MMWORD [ebx] ; mm6=Cb(01234567)
87
movq mm7, MMWORD [edx] ; mm7=Cr(01234567)
89
pxor mm1,mm1 ; mm1=(all 0's)
91
psllw mm3,7 ; mm3={0xFF80 0xFF80 0xFF80 0xFF80}
94
punpckhbw mm6,mm1 ; mm6=Cb(4567)=CbH
95
punpcklbw mm4,mm1 ; mm4=Cb(0123)=CbL
97
punpckhbw mm7,mm1 ; mm7=Cr(4567)=CrH
98
punpcklbw mm0,mm1 ; mm0=Cr(0123)=CrL
106
; R = Y + 1.40200 * Cr
107
; G = Y - 0.34414 * Cb - 0.71414 * Cr
108
; B = Y + 1.77200 * Cb
110
; (This implementation)
111
; R = Y + 0.40200 * Cr + Cr
112
; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
113
; B = Y - 0.22800 * Cb + Cb + Cb
115
movq mm5,mm6 ; mm5=CbH
116
movq mm2,mm4 ; mm2=CbL
117
paddw mm6,mm6 ; mm6=2*CbH
118
paddw mm4,mm4 ; mm4=2*CbL
119
movq mm1,mm7 ; mm1=CrH
120
movq mm3,mm0 ; mm3=CrL
121
paddw mm7,mm7 ; mm7=2*CrH
122
paddw mm0,mm0 ; mm0=2*CrL
124
pmulhw mm6,[GOTOFF(eax,PW_MF0228)] ; mm6=(2*CbH * -FIX(0.22800))
125
pmulhw mm4,[GOTOFF(eax,PW_MF0228)] ; mm4=(2*CbL * -FIX(0.22800))
126
pmulhw mm7,[GOTOFF(eax,PW_F0402)] ; mm7=(2*CrH * FIX(0.40200))
127
pmulhw mm0,[GOTOFF(eax,PW_F0402)] ; mm0=(2*CrL * FIX(0.40200))
129
paddw mm6,[GOTOFF(eax,PW_ONE)]
130
paddw mm4,[GOTOFF(eax,PW_ONE)]
131
psraw mm6,1 ; mm6=(CbH * -FIX(0.22800))
132
psraw mm4,1 ; mm4=(CbL * -FIX(0.22800))
133
paddw mm7,[GOTOFF(eax,PW_ONE)]
134
paddw mm0,[GOTOFF(eax,PW_ONE)]
135
psraw mm7,1 ; mm7=(CrH * FIX(0.40200))
136
psraw mm0,1 ; mm0=(CrL * FIX(0.40200))
140
paddw mm6,mm5 ; mm6=(CbH * FIX(1.77200))=(B-Y)H
141
paddw mm4,mm2 ; mm4=(CbL * FIX(1.77200))=(B-Y)L
142
paddw mm7,mm1 ; mm7=(CrH * FIX(1.40200))=(R-Y)H
143
paddw mm0,mm3 ; mm0=(CrL * FIX(1.40200))=(R-Y)L
145
movq MMWORD [wk(0)], mm6 ; wk(0)=(B-Y)H
146
movq MMWORD [wk(1)], mm7 ; wk(1)=(R-Y)H
152
pmaddwd mm5,[GOTOFF(eax,PW_MF0344_F0285)]
153
pmaddwd mm6,[GOTOFF(eax,PW_MF0344_F0285)]
156
pmaddwd mm2,[GOTOFF(eax,PW_MF0344_F0285)]
157
pmaddwd mm7,[GOTOFF(eax,PW_MF0344_F0285)]
159
paddd mm5,[GOTOFF(eax,PD_ONEHALF)]
160
paddd mm6,[GOTOFF(eax,PD_ONEHALF)]
163
paddd mm2,[GOTOFF(eax,PD_ONEHALF)]
164
paddd mm7,[GOTOFF(eax,PD_ONEHALF)]
168
packssdw mm5,mm6 ; mm5=CbH*-FIX(0.344)+CrH*FIX(0.285)
169
packssdw mm2,mm7 ; mm2=CbL*-FIX(0.344)+CrL*FIX(0.285)
170
psubw mm5,mm1 ; mm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H
171
psubw mm2,mm3 ; mm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L
173
movq MMWORD [wk(2)], mm5 ; wk(2)=(G-Y)H
180
movq mm0, MMWORD [wk(1)] ; mm0=(R-Y)H
181
movq mm2, MMWORD [wk(2)] ; mm2=(G-Y)H
182
movq mm4, MMWORD [wk(0)] ; mm4=(B-Y)H
186
movq mm7, MMWORD [esi] ; mm7=Y(01234567)
189
psrlw mm6,BYTE_BIT ; mm6={0xFF 0x00 0xFF 0x00 ..}
190
pand mm6,mm7 ; mm6=Y(0246)=YE
191
psrlw mm7,BYTE_BIT ; mm7=Y(1357)=YO
193
movq mm1,mm0 ; mm1=mm0=(R-Y)(L/H)
194
movq mm3,mm2 ; mm3=mm2=(G-Y)(L/H)
195
movq mm5,mm4 ; mm5=mm4=(B-Y)(L/H)
197
paddw mm0,mm6 ; mm0=((R-Y)+YE)=RE=(R0 R2 R4 R6)
198
paddw mm1,mm7 ; mm1=((R-Y)+YO)=RO=(R1 R3 R5 R7)
199
packuswb mm0,mm0 ; mm0=(R0 R2 R4 R6 ** ** ** **)
200
packuswb mm1,mm1 ; mm1=(R1 R3 R5 R7 ** ** ** **)
202
paddw mm2,mm6 ; mm2=((G-Y)+YE)=GE=(G0 G2 G4 G6)
203
paddw mm3,mm7 ; mm3=((G-Y)+YO)=GO=(G1 G3 G5 G7)
204
packuswb mm2,mm2 ; mm2=(G0 G2 G4 G6 ** ** ** **)
205
packuswb mm3,mm3 ; mm3=(G1 G3 G5 G7 ** ** ** **)
207
paddw mm4,mm6 ; mm4=((B-Y)+YE)=BE=(B0 B2 B4 B6)
208
paddw mm5,mm7 ; mm5=((B-Y)+YO)=BO=(B1 B3 B5 B7)
209
packuswb mm4,mm4 ; mm4=(B0 B2 B4 B6 ** ** ** **)
210
packuswb mm5,mm5 ; mm5=(B1 B3 B5 B7 ** ** ** **)
212
%if RGB_PIXELSIZE == 3 ; ---------------
214
; mmA=(00 02 04 06 ** ** ** **), mmB=(01 03 05 07 ** ** ** **)
215
; mmC=(10 12 14 16 ** ** ** **), mmD=(11 13 15 17 ** ** ** **)
216
; mmE=(20 22 24 26 ** ** ** **), mmF=(21 23 25 27 ** ** ** **)
217
; mmG=(** ** ** ** ** ** ** **), mmH=(** ** ** ** ** ** ** **)
219
punpcklbw mmA,mmC ; mmA=(00 10 02 12 04 14 06 16)
220
punpcklbw mmE,mmB ; mmE=(20 01 22 03 24 05 26 07)
221
punpcklbw mmD,mmF ; mmD=(11 21 13 23 15 25 17 27)
225
punpcklwd mmA,mmE ; mmA=(00 10 20 01 02 12 22 03)
226
punpckhwd mmG,mmE ; mmG=(04 14 24 05 06 16 26 07)
228
psrlq mmH,2*BYTE_BIT ; mmH=(02 12 04 14 06 16 -- --)
229
psrlq mmE,2*BYTE_BIT ; mmE=(22 03 24 05 26 07 -- --)
233
punpcklwd mmD,mmH ; mmD=(11 21 02 12 13 23 04 14)
234
punpckhwd mmC,mmH ; mmC=(15 25 06 16 17 27 -- --)
236
psrlq mmB,2*BYTE_BIT ; mmB=(13 23 15 25 17 27 -- --)
239
punpcklwd mmE,mmB ; mmE=(22 03 13 23 24 05 15 25)
240
punpckhwd mmF,mmB ; mmF=(26 07 17 27 -- -- -- --)
242
punpckldq mmA,mmD ; mmA=(00 10 20 01 11 21 02 12)
243
punpckldq mmE,mmG ; mmE=(22 03 13 23 04 14 24 05)
244
punpckldq mmC,mmF ; mmC=(15 25 06 16 26 07 17 27)
246
cmp ecx, byte SIZEOF_MMWORD
247
jb short .column_st16
249
movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
250
movq MMWORD [edi+1*SIZEOF_MMWORD], mmE
251
movq MMWORD [edi+2*SIZEOF_MMWORD], mmC
253
sub ecx, byte SIZEOF_MMWORD
256
add edi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; outptr
257
add esi, byte SIZEOF_MMWORD ; inptr0
261
add ebx, byte SIZEOF_MMWORD ; inptr1
262
add edx, byte SIZEOF_MMWORD ; inptr2
267
lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE
268
cmp ecx, byte 2*SIZEOF_MMWORD
270
movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
271
movq MMWORD [edi+1*SIZEOF_MMWORD], mmE
273
sub ecx, byte 2*SIZEOF_MMWORD
274
add edi, byte 2*SIZEOF_MMWORD
275
jmp short .column_st4
277
cmp ecx, byte SIZEOF_MMWORD
279
movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
281
sub ecx, byte SIZEOF_MMWORD
282
add edi, byte SIZEOF_MMWORD
285
cmp ecx, byte SIZEOF_DWORD
287
mov DWORD [edi+0*SIZEOF_DWORD], eax
290
sub ecx, byte SIZEOF_DWORD
291
add edi, byte SIZEOF_DWORD
293
cmp ecx, byte SIZEOF_WORD
295
mov WORD [edi+0*SIZEOF_WORD], ax
297
sub ecx, byte SIZEOF_WORD
298
add edi, byte SIZEOF_WORD
300
cmp ecx, byte SIZEOF_BYTE
302
mov BYTE [edi+0*SIZEOF_BYTE], al
304
%else ; RGB_PIXELSIZE == 4 ; -----------
306
%ifdef RGBX_FILLER_0XFF
307
pcmpeqb mm6,mm6 ; mm6=(X0 X2 X4 X6 ** ** ** **)
308
pcmpeqb mm7,mm7 ; mm7=(X1 X3 X5 X7 ** ** ** **)
310
pxor mm6,mm6 ; mm6=(X0 X2 X4 X6 ** ** ** **)
311
pxor mm7,mm7 ; mm7=(X1 X3 X5 X7 ** ** ** **)
313
; mmA=(00 02 04 06 ** ** ** **), mmB=(01 03 05 07 ** ** ** **)
314
; mmC=(10 12 14 16 ** ** ** **), mmD=(11 13 15 17 ** ** ** **)
315
; mmE=(20 22 24 26 ** ** ** **), mmF=(21 23 25 27 ** ** ** **)
316
; mmG=(30 32 34 36 ** ** ** **), mmH=(31 33 35 37 ** ** ** **)
318
punpcklbw mmA,mmC ; mmA=(00 10 02 12 04 14 06 16)
319
punpcklbw mmE,mmG ; mmE=(20 30 22 32 24 34 26 36)
320
punpcklbw mmB,mmD ; mmB=(01 11 03 13 05 15 07 17)
321
punpcklbw mmF,mmH ; mmF=(21 31 23 33 25 35 27 37)
324
punpcklwd mmA,mmE ; mmA=(00 10 20 30 02 12 22 32)
325
punpckhwd mmC,mmE ; mmC=(04 14 24 34 06 16 26 36)
327
punpcklwd mmB,mmF ; mmB=(01 11 21 31 03 13 23 33)
328
punpckhwd mmG,mmF ; mmG=(05 15 25 35 07 17 27 37)
331
punpckldq mmA,mmB ; mmA=(00 10 20 30 01 11 21 31)
332
punpckhdq mmD,mmB ; mmD=(02 12 22 32 03 13 23 33)
334
punpckldq mmC,mmG ; mmC=(04 14 24 34 05 15 25 35)
335
punpckhdq mmH,mmG ; mmH=(06 16 26 36 07 17 27 37)
337
cmp ecx, byte SIZEOF_MMWORD
338
jb short .column_st16
340
movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
341
movq MMWORD [edi+1*SIZEOF_MMWORD], mmD
342
movq MMWORD [edi+2*SIZEOF_MMWORD], mmC
343
movq MMWORD [edi+3*SIZEOF_MMWORD], mmH
345
sub ecx, byte SIZEOF_MMWORD
348
add edi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; outptr
349
add esi, byte SIZEOF_MMWORD ; inptr0
353
add ebx, byte SIZEOF_MMWORD ; inptr1
354
add edx, byte SIZEOF_MMWORD ; inptr2
359
cmp ecx, byte SIZEOF_MMWORD/2
361
movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
362
movq MMWORD [edi+1*SIZEOF_MMWORD], mmD
365
sub ecx, byte SIZEOF_MMWORD/2
366
add edi, byte 2*SIZEOF_MMWORD
368
cmp ecx, byte SIZEOF_MMWORD/4
370
movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
372
sub ecx, byte SIZEOF_MMWORD/4
373
add edi, byte 1*SIZEOF_MMWORD
375
cmp ecx, byte SIZEOF_MMWORD/8
377
movd DWORD [edi+0*SIZEOF_DWORD], mmA
379
%endif ; RGB_PIXELSIZE ; ---------------
382
emms ; empty MMX state
387
; pop edx ; need not be preserved
388
; pop ecx ; need not be preserved
390
mov esp,ebp ; esp <- aligned ebp
391
pop esp ; esp <- original ebp
395
; --------------------------------------------------------------------------
397
; Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.
400
; jsimd_h2v2_merged_upsample_mmx (JDIMENSION output_width,
401
; JSAMPIMAGE input_buf,
402
; JDIMENSION in_row_group_ctr,
403
; JSAMPARRAY output_buf);
406
%define output_width(b) (b)+8 ; JDIMENSION output_width
407
%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
408
%define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
409
%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
412
global EXTN(jsimd_h2v2_merged_upsample_mmx)
414
EXTN(jsimd_h2v2_merged_upsample_mmx):
418
; push ecx ; need not be preserved
419
; push edx ; need not be preserved
423
mov eax, JDIMENSION [output_width(ebp)]
425
mov edi, JSAMPIMAGE [input_buf(ebp)]
426
mov ecx, JDIMENSION [in_row_group_ctr(ebp)]
427
mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
428
mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
429
mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
430
mov edi, JSAMPARRAY [output_buf(ebp)]
431
lea esi, [esi+ecx*SIZEOF_JSAMPROW]
438
push edi ; output_buf (outptr0)
439
push ecx ; in_row_group_ctr
441
push eax ; output_width
443
call near EXTN(jsimd_h2v1_merged_upsample_mmx)
445
add esi, byte SIZEOF_JSAMPROW ; inptr01
446
add edi, byte SIZEOF_JSAMPROW ; outptr1
447
mov POINTER [ebx+0*SIZEOF_POINTER], esi
448
mov POINTER [ebx-1*SIZEOF_POINTER], edi
450
call near EXTN(jsimd_h2v1_merged_upsample_mmx)
452
add esp, byte 7*SIZEOF_DWORD
456
; pop edx ; need not be preserved
457
; pop ecx ; need not be preserved
462
; For some reason, the OS X linker does not honor the request to align the
463
; segment unless we do this.